News & Insights
The 2026 Edition is Available of A Trademark is Not a Copyright or a Patent by William M. Borchard with Deborah K. Squiers
Cowan, Liebowitz & Latman is Hosting a CLE About Recent Copyright Developments for In-House Counsel
Celebrating Women’s History Month: Ruth Wakefield and the Business of Innovation Without a Patent
Cowan, Liebowitz & Latman Partner Mark Montague Receives Lexology Client Choice Award
On My Mind Blog
Case Studies
Federal Circuit reverses cancellation of U.S. trademark registrations
We succesfully represented our client, Major League Baseball Partners, Inc.
We established that cigarette rolling paper size designations are generic.
The Second Circuit affirms summary judgment for our client.
Federal Circuit upholds successful opposition against application to register LEHMAN BROTHERS for whiskey
What They Say
"Cowan, Liebowitz & Latman is a highly respected boutique particularly proficient in handling copyright and trademark litigation, but also known for its high-quality advice on portfolio management. The firm exhibits expert knowledge of the publishing industry, and frequently handles IP matters relating to advertising."
Chambers USA 2025“[Kieran] Doyle is trusted by Fortune 500 retail group Qurate Retail on all prosecution and enforcement programs across the world.”
2026 WTR 1000 – The World’s Leading Trademark Professionals“Joel Karni Schmidt is a superb lawyer with in-depth knowledge and a wonderful business acumen to reach the optimal result for his clients. His advice is timely, commercial and extremely client friendly. He communicates complex issues with clarity and maintains a strong focus on practical solutions.”
2026 WTR 1000 – The World’s Leading Trademark Professionals“Welcomed back to the firm in January 2025, Louis Ederer brings over four decades of experience representing some of the most iconic global brands. ‘Louis has a tenacity for serving his clients. He is fierce but fair and knows the relevant law inside and out.’”
2026 WTR 1000 – The World’s Leading Trademark Professionals"Richard S. Mandel is a phenomenal intellectual property litigator, held in high esteem for deft handling of cases at the forefront of the industry, and is lauded by peers and clients as 'a strong thinker'."
2025 Lexology Index
Why Us
Founded in 1957, we maintain long-term relationships by providing sound advice, quality legal work, and highly-responsive, personalized service.
What We Do
We represent clients of all sizes across a broad range of industries. The boutique size of our firm, and the breadth of our practice capabilities, allow us to provide a multidisciplinary approach in a cost-effective manner.
Our Clients
Our experience spans a broad range of industries and is international in scope. We appreciate the opportunity of growing with successful companies and brands, as well as creative individuals and accomplished executives.










